The shimano ultegra st 6800 sti set provide tactile feedback to the cyclist that the gear shift is completed the ultegra carbon levers powerful braking system and 11 speed shifting offers a high level of performance precision engineered ultegra sti carbon levers offer powerful braking and effortless 11 speed shifting so they are perfect for enthusiast or competitive riders the internal shift cable routing offers a slick and clean look ad key features precision engineered ultegra